Vulnerabilities > CVE-2016-2860 - Improper Access Control vulnerability in multiple products
Attack vector
NETWORK Attack complexity
LOW Privileges required
LOW Confidentiality impact
NONE Integrity impact
HIGH Availability impact
NONE Summary
The newEntry function in ptserver/ptprocs.c in OpenAFS before 1.6.17 allows remote authenticated users from foreign Kerberos realms to bypass intended access restrictions and create arbitrary groups as administrators by leveraging mishandling of the creator ID.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Embedding Scripts within Scripts An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
- Signature Spoofing by Key Theft An attacker obtains an authoritative or reputable signer's private signature key by theft and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3569.NASL description Two vulnerabilities were discovered in openafs, an implementation of the distributed filesystem AFS. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2015-8312 Potential denial of service caused by a bug in the pioctl logic allowing a local user to overrun a kernel buffer with a single NUL byte. - CVE-2016-2860 Peter Iannucci discovered that users from foreign Kerberos realms can create groups as if they were administrators. last seen 2020-06-01 modified 2020-06-02 plugin id 90928 published 2016-05-06 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90928 title Debian DSA-3569-1 : openafs - security update code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-3569. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(90928); script_version("1.6"); script_cvs_date("Date: 2018/11/10 11:49:37"); script_cve_id("CVE-2015-8312", "CVE-2016-2860"); script_xref(name:"DSA", value:"3569"); script_name(english:"Debian DSA-3569-1 : openafs - security update"); script_summary(english:"Checks dpkg output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Two vulnerabilities were discovered in openafs, an implementation of the distributed filesystem AFS. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2015-8312 Potential denial of service caused by a bug in the pioctl logic allowing a local user to overrun a kernel buffer with a single NUL byte. - CVE-2016-2860 Peter Iannucci discovered that users from foreign Kerberos realms can create groups as if they were administrators." ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2015-8312" ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2016-2860" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/jessie/openafs" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2016/dsa-3569" ); script_set_attribute( attribute:"solution", value: "Upgrade the openafs packages. For the stable distribution (jessie), these problems have been fixed in version 1.6.9-2+deb8u5." ); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0"); script_set_attribute(attribute:"patch_publication_date", value:"2016/05/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/06"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"8.0", prefix:"libafsauthent1", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"libafsrpc1", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"libkopenafs1", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"libopenafs-dev", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"libpam-openafs-kaserver", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-client", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-dbg", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-dbserver", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-doc", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-fileserver", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-fuse", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-kpasswd", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-krb5", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-modules-dkms", reference:"1.6.9-2+deb8u5")) flag++; if (deb_check(release:"8.0", prefix:"openafs-modules-source", reference:"1.6.9-2+deb8u5")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family Scientific Linux Local Security Checks NASL id SL_20160317_OPENAFS_ON_SL5_X.NASL description -- This release fixes the vulnerabilities tracked as OPENAFS-SA-2016-001 and OPENAFS-SA-2016-002. OPENAFS-SA-2016-001 (CVE-2016-2860): Users from foreign Kerberos realms can create groups as if they were administrators OPENAFS-SA-2016-002: Information leakage over the network due to uninitialized memory For more details please see <a href= last seen 2020-03-18 modified 2016-03-18 plugin id 90020 published 2016-03-18 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/90020 title Scientific Linux Security Update : OpenAFS on SL5.x, SL6.x, SL7.x i386/x86_64 (20160317) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text is (C) Scientific Linux. # include("compat.inc"); if (description) { script_id(90020); script_version("2.6"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2016-2860"); script_name(english:"Scientific Linux Security Update : OpenAFS on SL5.x, SL6.x, SL7.x i386/x86_64 (20160317)"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Scientific Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "-- This release fixes the vulnerabilities tracked as OPENAFS-SA-2016-001 and OPENAFS-SA-2016-002. OPENAFS-SA-2016-001 (CVE-2016-2860): Users from foreign Kerberos realms can create groups as if they were administrators OPENAFS-SA-2016-002: Information leakage over the network due to uninitialized memory For more details please see <a href='http://www.openafs.org/pages/security/OPENAFS-SA-2016-001.txt' target='_blank'>http://www.openafs.org/pages/security/OPENAFS-SA-2016- 001.txt</a> <a href='http://www.openafs.org/pages/security/OPENAFS-SA-2016-002.txt' target='_blank'>http://www.openafs.org/pages/security/OPENAFS-SA-2016- 002.txt</a>" ); # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1603&L=scientific-linux-errata&F=&S=&P=6681 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?7f3435b1" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:S/C:N/I:P/A:N"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-module-openafs-2.6.18-406.el5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-module-openafs-2.6.18-406.el5PAE"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kernel-module-openafs-2.6.18-406.el5xen"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kmod-openafs-1.6-sl-327"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:kmod-openafs-573"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-authlibs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-authlibs-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-compat"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-kernel-source"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-kpasswd"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-krb5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-module-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-plumbing-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-1.6-sl-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-authlibs"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-authlibs-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-compat"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-debug"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-kernel-source"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-kpasswd"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-krb5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-module-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-plumbing-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:openafs-server"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/05/13"); script_set_attribute(attribute:"patch_publication_date", value:"2016/03/17"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/03/18"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Scientific Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux"); os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux"); os_ver = os_ver[1]; if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu); flag = 0; if (rpm_check(release:"SL5", reference:"kernel-module-openafs-2.6.18-406.el5-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", cpu:"i386", reference:"kernel-module-openafs-2.6.18-406.el5PAE-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"kernel-module-openafs-2.6.18-406.el5xen-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-authlibs-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-authlibs-devel-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-client-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-compat-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-debug-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-devel-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-kernel-source-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-kpasswd-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-krb5-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL5", reference:"openafs-server-1.4.15-89.sl5")) flag++; if (rpm_check(release:"SL6", reference:"kmod-openafs-573-1.6.17-234.sl6.573.12.1")) flag++; if (rpm_check(release:"SL6", reference:"openafs-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-authlibs-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-authlibs-devel-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-client-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-compat-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-devel-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-kernel-source-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-kpasswd-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-krb5-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-module-tools-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-plumbing-tools-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL6", reference:"openafs-server-1.6.17-234.sl6")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"kmod-openafs-1.6-sl-327-1.6.17-234.sl7.327.10.1")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-authlibs-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-authlibs-devel-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-client-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-compat-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-devel-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-kernel-source-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-kpasswd-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-krb5-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-module-tools-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-plumbing-tools-1.6.17-234.sl7")) flag++; if (rpm_check(release:"SL7", cpu:"x86_64", reference:"openafs-1.6-sl-server-1.6.17-234.sl7")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_WARNING, extra : rpm_report_get() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "kernel-module-openafs-2.6.18-406.el5 / etc"); }NASL family Debian Local Security Checks NASL id DEBIAN_DLA-493.NASL description - CVE-2015-8312: Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a denial of service (memory overwrite and system crash) via a pioctl with an input buffer size of 4096 bytes. - CVE-2016-2860: The newEntry function in ptserver/ptprocs.c in OpenAFS before 1.6.17 allows remote authenticated users from foreign Kerberos realms to bypass intended access restrictions and create arbitrary groups as administrators by leveraging mishandling of the creator ID. - CVE-2016-4536: The client in OpenAFS before 1.6.17 does not properly initialize the (1) AFSStoreStatus, (2) AFSStoreVolumeStatus, (3) VldbListByAttributes, and (4) ListAddrByAttributes structures, which might allow remote attackers to obtain sensitive memory information by leveraging access to RPC call traffic. For Debian 7 last seen 2020-03-17 modified 2016-05-31 plugin id 91360 published 2016-05-31 reporter This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91360 title Debian DLA-493-1 : openafs security update code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DLA-493-1. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(91360); script_version("2.10"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2015-8312", "CVE-2016-2860", "CVE-2016-4536"); script_name(english:"Debian DLA-493-1 : openafs security update"); script_summary(english:"Checks dpkg output for the updated packages."); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security update." ); script_set_attribute( attribute:"description", value: " - CVE-2015-8312: Off-by-one error in afs_pioctl.c in OpenAFS before 1.6.16 might allow local users to cause a denial of service (memory overwrite and system crash) via a pioctl with an input buffer size of 4096 bytes. - CVE-2016-2860: The newEntry function in ptserver/ptprocs.c in OpenAFS before 1.6.17 allows remote authenticated users from foreign Kerberos realms to bypass intended access restrictions and create arbitrary groups as administrators by leveraging mishandling of the creator ID. - CVE-2016-4536: The client in OpenAFS before 1.6.17 does not properly initialize the (1) AFSStoreStatus, (2) AFSStoreVolumeStatus, (3) VldbListByAttributes, and (4) ListAddrByAttributes structures, which might allow remote attackers to obtain sensitive memory information by leveraging access to RPC call traffic. For Debian 7 'Wheezy', these problems have been fixed in version 1.6.1-3+deb7u6. We recommend that you upgrade your openafs packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues." ); script_set_attribute( attribute:"see_also", value:"https://lists.debian.org/debian-lts-announce/2016/05/msg00045.html" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/wheezy/openafs" ); script_set_attribute(attribute:"solution", value:"Upgrade the affected packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"); script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libafsauthent1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libafsrpc1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libkopenafs1"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libopenafs-dev"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpam-openafs-kaserver"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-dbg"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-dbserver"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-doc"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-fileserver"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-fuse"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-kpasswd"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-krb5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-modules-dkms"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:openafs-modules-source"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0"); script_set_attribute(attribute:"patch_publication_date", value:"2016/05/29"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/05/31"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"7.0", prefix:"libafsauthent1", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"libafsrpc1", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"libkopenafs1", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"libopenafs-dev", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"libpam-openafs-kaserver", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-client", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-dbg", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-dbserver", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-doc", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-fileserver", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-fuse", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-kpasswd", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-krb5", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-modules-dkms", reference:"1.6.1-3+deb7u6")) flag++; if (deb_check(release:"7.0", prefix:"openafs-modules-source", reference:"1.6.1-3+deb7u6")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_BCBD3FE02B4611E6AE88002590263BF5.NASL description The OpenAFS development team reports : Foreign users can bypass access controls to create groups as system:administrators, including in the user namespace and the system: namespace. The contents of uninitialized memory are sent on the wire when clients perform certain RPCs. Depending on the RPC, the information leaked may come from kernel memory or userspace. last seen 2020-06-01 modified 2020-06-02 plugin id 91477 published 2016-06-06 reporter This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/91477 title FreeBSD : openafs -- multiple vulnerabilities (bcbd3fe0-2b46-11e6-ae88-002590263bf5) code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from the FreeBSD VuXML database : # # Copyright 2003-2018 Jacques Vidrine and contributors # # Redistribution and use in source (VuXML) and 'compiled' forms (SGML, # HTML, PDF, PostScript, RTF and so forth) with or without modification, # are permitted provided that the following conditions are met: # 1. Redistributions of source code (VuXML) must retain the above # copyright notice, this list of conditions and the following # disclaimer as the first lines of this file unmodified. # 2. Redistributions in compiled form (transformed to other DTDs, # published online in any format, converted to PDF, PostScript, # RTF and other formats) must reproduce the above copyright # notice, this list of conditions and the following disclaimer # in the documentation and/or other materials provided with the # distribution. # # THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" # AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, # OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT # OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR # BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, # WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE # OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION, # EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. # include("compat.inc"); if (description) { script_id(91477); script_version("2.3"); script_cvs_date("Date: 2018/11/10 11:49:45"); script_cve_id("CVE-2016-2860", "CVE-2016-4536"); script_name(english:"FreeBSD : openafs -- multiple vulnerabilities (bcbd3fe0-2b46-11e6-ae88-002590263bf5)"); script_summary(english:"Checks for updated package in pkg_info output"); script_set_attribute( attribute:"synopsis", value:"The remote FreeBSD host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "The OpenAFS development team reports : Foreign users can bypass access controls to create groups as system:administrators, including in the user namespace and the system: namespace. The contents of uninitialized memory are sent on the wire when clients perform certain RPCs. Depending on the RPC, the information leaked may come from kernel memory or userspace." ); script_set_attribute( attribute:"see_also", value:"https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209534" ); script_set_attribute( attribute:"see_also", value:"http://www.openafs.org/pages/security/OPENAFS-SA-2016-001.txt" ); script_set_attribute( attribute:"see_also", value:"http://www.openafs.org/pages/security/OPENAFS-SA-2016-002.txt" ); # https://vuxml.freebsd.org/freebsd/bcbd3fe0-2b46-11e6-ae88-002590263bf5.html script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?ee9d73a0" ); script_set_attribute(attribute:"solution", value:"Update the affected package."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N"); script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:openafs"); script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd"); script_set_attribute(attribute:"vuln_publication_date", value:"2016/03/16"); script_set_attribute(attribute:"patch_publication_date", value:"2016/06/05"); script_set_attribute(attribute:"plugin_publication_date", value:"2016/06/06"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"FreeBSD Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info"); exit(0); } include("audit.inc"); include("freebsd_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD"); if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (pkg_test(save_report:TRUE, pkg:"openafs<1.6.17")) flag++; if (flag) { if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get()); else security_warning(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
References
- http://www.openafs.org/pages/security/OPENAFS-SA-2016-001.txt
- http://www.debian.org/security/2016/dsa-3569
- https://www.openafs.org/dl/openafs/1.6.17/RELNOTES-1.6.17
- https://lists.openafs.org/pipermail/openafs-announce/2016/000496.html
- http://git.openafs.org/?p=openafs.git%3Ba=commitdiff%3Bh=396240cf070a806b91fea81131d034e1399af1e0